公开(公告)号：US20170227265A1

公开(公告)日：2017-08-10

申请号：US15256858

申请日：2016-09-06

Applicant: LG ELECTRONICS INC.

Inventor： Cheolmin KIM ,  Jinhee JEONG ,  Jungho KANG ,  Hyunwook HAN

IPC: F25B39/00 ,  F25B41/04

CPC classification number: F25B39/00 ,  F25B39/04 ,  F25B41/04 ,  F25B2339/047 ,  F25B2600/2503

Abstract: A chiller system includes a compressor that compress refrigerant, a condenser that exchanges heat between the refrigerant and a cooling water discharged from the compressor, and a flow adjusting device that is provided to a refrigerant outlet side of the condenser and adjusts refrigerant amount in the inside of the condenser, the flow adjusting device includes, a main body portion that is communicated with a tubing of the outlet side of the condenser, a refrigerant supply tube that extends to the main body portion from the condenser and supplies the refrigerant in the inside of the condenser to the inside of the main body portion, and a flow hole that is formed on the main body portion and is selectively opened and closed according to refrigerant pressure which is input through the refrigerant supply tube.

公开(公告)号：US20210348615A1

公开(公告)日：2021-11-11

申请号：US16921081

申请日：2020-07-06

Applicant: LG ELECTRONICS INC.

Inventor： Cheolmin KIM ,  Jinhee JEONG ,  Hyunwook HAN ,  Uisik HWANG ,  Jungho KANG ,  Heewoong LEE

IPC: F04D17/12 ,  F04D25/02 ,  F25B31/02

Abstract: A turbo compressor includes a housing with a refrigerant suction hole, through which a refrigerant is introduced, at a front portion thereof, and a motor case defining an accommodation space. The accommodation space includes a rotation shaft extending in a front-rear direction and a motor that is configured to rotate the rotation shaft. A first impeller is coupled to one end of the rotation shaft and a second impeller is coupled to the other end of the rotation shaft. The first impeller is configured to primarily compress the refrigerant introduced into the refrigerant suction hole. A connection passage, that surrounds the motor case extends backward from an outlet of the first impeller. The second impeller is configured to secondarily compress the refrigerant introduced through the connection passage.